Unit 15 A doctor for animals

典型例题

【例1】用括号内所给动词的适当形式填空。

　　1. I don't know when ______(have) a picnic.

　　2. She is very busy today. She has a lot of work______(do)。

　　3. It's impossible for us ______(finish) the work in such a short time.

　　4. teacher asked us ______(be) careful when we crossed the road.

　　5. Last week they went to the farm ______(help) the farmers with their work.

　　6. She wants ______(be) a doctor when she grows up.

　　7. How long does it take you ______(get) to the factory by bus?

　　8. My mother never lets me ______(play) football after lunch.

　　答案 1．to have（这是带有疑问词的动词不定式，在句中做宾语。）2．to do（不定式做定语，修饰work。）3．to finish（动词不定式做主语。） 4．to be（不定式做宾语补足语。）       5．to help（不定式做状语。） 6．to be（不定式做宾语。）  7．to get（不定式做主语。）       8．play（不定式做宾语补足语。有些动词如：let，make，feel，have，hear，see，watch等后面的动词不定式做宾语补足语时，动词不定式省掉to。）

单项选择填空

（  ）l. —________?

　　　　—I’ve got a terrible cough.

　　A. What’s the matter　　　B. What do you do

　　C. What have you bought　　D. How do you do

（  ）2. —Doctor ,1 have a serious headache.

　　　　—________.

　　A. That’s ail right　　　B. Sorry to hear that

　　C. Take it easy　　　　　 D. Not at all

（  ）3. —Our football team has ____ the match.

　　　　—Congratulations!

　　A. watched　　B. joined　　C. won　　D. lost

（  ）4. Li Ming didn’t know anything about it ____ I told him.

　　A. after　　B. until　　C. if　　D. because

（  ）5. We won’t visit the Great Wall until the rain ____ .

　　A. will stop　　B. stops

　　C. stopped　　　D. has stopped

　　解析1．A．B项表示“你做什么？”C项表示“你买了什么？”D项表示问好，A项表示“怎么啦？”“哪里不舒服”？

　　2．C．A项和D项意为“没关系，不用谢”，用以对别人的感谢表示客气的应答，B项表示听到问话后很难过，显然不是医生所说，C项意为“别着急”，是医生在安慰患者。

　　3．C认识货可来看，可见我方球队赢了这场比赛。won是win的过去分词，表示“赢得”。

　　4．B．该句是由连词until引导的状语从句，“not…until…”是常见句型，表示“直到……才……”，其主句的谓语动词必须是非持续性动词，而且主句用否定式，从句用肯定式。

　　5．B．由as soon as; when; if; not…until引导的状语从句，主句的谓语动词用将来时时，从句的谓语动词用现在时。

【例2】阅读理解

　　Thomas Edison was a famous American scientist. He was born in 1874. When he was a child, he liked to find out how things worked. He was in school for only three months. He asked his teacher a lot of strange questions. Most of them had nothing to do with his lessons. The teacher thought the boy was not bright and was not worth (值) teaching. When he told this to Edison's mother, she took her son out of school. As she had been a teacher, she taught him herself. The boy read a lot. Soon he became very interested in science. At the age of ten, Edison had already built a chemistry lab for himself. Ever since then, he never stopped searching for new and better ways to do things.

(     ) 1 . Edison was born in the ____ century (世纪).

　　A. eighteenth    B. nineteenth    C. nineteen    D. eighteen

(     )2. While he was in school, Edison ____ .

　　A. studied his lessons very hard

　　B. was often late for school

　　C. liked to ask questions

　　D. was not bright enough to study

(     ) 3. Edison learned more from ____ .

　　A. his mother　　B. his teacher

　　C. other boys　　D. his father

(     ) 4. Young Edison was interested in ____ .

　　A. sports　　　　　　B. playing games

　　C. making trouble　　D. science

(     )5. He was always searching for new and better ways to do things after he____

　　A. read books　　 B. finished school

　　C. built a lab　　D. was taken out of school

解析  本篇是关于著名科学家、发明家爱迪生的生平的记叙性短文。

　　1．此题“Edison was born in the _______ century”虽排在首位，但难度可以说是最大的。因为考生通过原文中“He was born in 1847”，便很容易误选A，殊不知正确答案要根据历史纪年常识来判断1847年应为“19世纪40年代”，故答案应为B。

　　2．此问属于文章表层理解，根据he liked to find out how things worked及He asked his teacher a lot of strange questions可知，答案为C。

　　3．此问属于表层理解，根据She taught him herself可知答案为A.

　　4．此问应属表层理解，答案为D。

　　5．此题考查的是事件发生顺序，由短文后两句可知，爱迪生10岁建立了自己的实验室，从未停止探索解决、处理问题的新的更好方法，所以选C.

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